sesg.dk DNS records

🖥️ Nameservers3 records 92ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.efif.dk	195.254.168.23	ns.efif.dk	AS51073 Aarhus Business College
ns2.efif.dk	195.254.168.12	ns2.efif.dk	AS51073 Aarhus Business College
ns3.efif.dk	20.23.170.35	—	AS8075 Microsoft Corporation

🌍 A Records1 records 102ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.43.14	300s	linux14.scannet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 134ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sesg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::9 2a01:111:f403:ca09::20 2a01:111:f403:ca09::d 52.101.68.12 52.101.73.123 52.101.73.30 52.101.73.6	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am6pr04cu00306.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 201ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records4 records 482ms

TXT Record
autodesk-domain-verification=dkp1dE0b13L429FCyjv7\010
KVpdE4LUaHFTYkbzAWWNnyOaoUHW7O3/E/21AoU5c0Lj6v9atvqhcJTklzIOEw41WUT0Cs1vrk45watUI/1c4g==
MS=ms20881320
v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:spfinclude.signflow.dk include:spf.scannet.dk Ip4:217.195.176.72 ip4:91.215.162.220 -all

✉️ SPF

Policy	Record (sesg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf2.efif.dk include:spfinclude.signflow.dk include:spf.scannet.dk Ip4:217.195.176.72 ip4:91.215.162.220 -all

📨 DMARC

Policy	Record (_dmarc.sesg.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@sesg.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com

📬 MTA-STS

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC257ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2016011586
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

92ms

A

102ms

MX

134ms

AAAA

122ms

TXT

482ms

CAA

134ms

HTTPS

141ms

TLSA

775ms

SOA

0ms

MTA-STS

167ms

DNSSEC

257ms

SRV

201ms

Total

2806ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 15:26:52	2806ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-28 13:34:30	1938ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-27 12:50:18	808ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 11:47:58	1248ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 09:30:50	9039ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 16:19:08	3498ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-21 11:05:08	6611ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 10:52:16	7378ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 08:56:35	10911ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 08:52:13	10981ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 14:31:20	5904ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-13 09:17:35	3321ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-11 16:12:22	4768ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 05:02:38	5770ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-08 08:52:44	2311ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 14:22:35	33217ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-01 00:17:34	2460ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-27 09:58:47	2627ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-25 08:19:56	14169ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-24 07:43:42	10805ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 05:33:03	2689ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-22 03:29:58	9465ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-19 15:06:10	3473ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 00:38:37	17492ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-16 06:12:54	2888ms	3 NS 1 A 1 MX	🔒 Secure	View